Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Revenue Recognition (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Total revenue	$ 25,222	$ 26,208	$ 50,977	$ 48,173
North America [Member]
Total revenue	13,237	15,262	29,186	27,944
U.K. [Member]
Total revenue	5,944	5,786	11,209	11,141
Other Foreign Markets [Member]
Total revenue	6,041	5,160	10,582	9,088
Seminars [Member]
Total revenue	16,795	16,254	33,033	28,593
Seminars [Member] \| North America [Member]
Total revenue	8,134	9,873	18,316	17,306
Seminars [Member] \| U.K. [Member]
Total revenue	4,690	4,060	8,120	7,292
Seminars [Member] \| Other Foreign Markets [Member]
Total revenue	3,971	2,321	6,597	3,995
Products [Member]
Total revenue	4,685	5,104	10,238	11,487
Products [Member] \| North America [Member]
Total revenue	2,578	2,787	5,852	5,834
Products [Member] \| U.K. [Member]
Total revenue	1,029	1,011	2,382	2,737
Products [Member] \| Other Foreign Markets [Member]
Total revenue	1,078	1,306	2,004	2,916
Coaching and Mentoring [Member
Total revenue	2,483	3,443	5,363	6,174
Coaching and Mentoring [Member \| North America [Member]
Total revenue	1,291	1,301	2,748	3,026
Coaching and Mentoring [Member \| U.K. [Member]
Total revenue	206	609	644	971
Coaching and Mentoring [Member \| Other Foreign Markets [Member]
Total revenue	986	1,533	1,971	2,177
Online and Subscription [Member]
Total revenue	404	37	986	66
Online and Subscription [Member] \| North America [Member]
Total revenue	385	31	952	56
Online and Subscription [Member] \| U.K. [Member]
Total revenue	13	6	24	10
Online and Subscription [Member] \| Other Foreign Markets [Member]
Total revenue	6		10
Other [Member]
Total revenue	855	1,370	1,357	1,853
Other [Member] \| North America [Member]
Total revenue	849	1,270	1,318	1,722
Other [Member] \| U.K. [Member]
Total revenue	6	100	39	131
Other [Member] \| Other Foreign Markets [Member]
Total revenue	$ 0		$ 0