Statements of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues:
Revenues	$ 20,596	$ 18,285	$ 40,312	$ 37,436
Model costs	14,905	12,946	28,747	26,645
Revenues net of model costs	5,691	5,339	11,565	10,791
Operating expenses:
Salaries and service costs	3,472	3,528	7,031	7,164
Office and general expenses	1,198	1,280	2,576	2,432
Amortization and depreciation	239	223	475	440
Corporate overhead	260	235	597	581
Total operating expenses	5,169	5,266	10,679	10,617
Operating income	522	73	886	174
Other expense:
Foreign exchange loss	(27)	(14)	(47)	(36)
Interest expense	(22)	(28)	(47)	(57)
Loss from unconsolidated affiliate		(9)		(38)
Total other expense	(49)	(51)	(94)	(131)
Income before provision for income taxes	473	22	792	43
Provision for income taxes: (expense) benefit
Current	(56)	(65)	(140)	(125)
Deferred	(53)	(9)	(63)	39
Income tax expense	(109)	(74)	(203)	(86)
Net income (loss)	364	(52)	589	(43)
Other comprehensive income (expense):
Foreign currency translation income (expense)	(75)	20	(32)	65
Total comprehensive income (loss)	$ 289	$ (32)	$ 557	$ 22
Basic net income (loss) per common share (in dollars per share)	$ 0.07	$ (0.01)	$ 0.11	$ (0.01)
Diluted net income (loss) per common share (in dollars per share)	$ 0.07	$ (0.01)	$ 0.11	$ (0.01)
Weighted average common shares outstanding-basic (in shares)	5,375	5,382	5,378	5,382
Weighted average common shares outstanding-diluted (in shares)	5,375	5,404	5,378	5,404
Service [Member]
Revenues:
Revenues	$ 20,580	$ 18,285	$ 40,282	$ 37,408
License Fees and Other [Member]
Revenues:
Revenues	$ 16		$ 30	$ 28