Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 31,628	$ 33,021
Trade accounts receivable, less allowance for doubtful accounts of $182 and $169 in 2017 and 2016, respectively	13,138	10,864
Unbilled revenue	1,644	1,546
Prepaid expenses	3,378	1,585
Income tax receivable	1,172	14
Other current assets	23	35
Total current assets	50,983	47,065
Property and equipment, net	12,138	11,806
Intangible assets, net	2,830	3,124
Goodwill	57,942	57,861
Other	683	768
Total assets	124,576	120,624
Current liabilities:
Current portion of notes payable	2,107	2,683
Accounts payable	883	765
Accrued wages, bonus and profit sharing	4,076	4,543
Accrued expenses	2,730	3,069
Current portion of capital lease obligations	102	82
Income taxes payable		662
Dividends payable	4,218	4,213
Deferred revenue	16,735	15,497
Total current liabilities	30,851	31,514
Notes payable, net of current portion		857
Deferred income taxes	5,057	4,670
Other long term liabilities	838	777
Total liabilities	36,746	37,818
Shareholders’ equity:
Preferred stock, $0.01 par value; authorized 2,000,000 shares, none issued	0	0
Additional paid-in capital	49,620	46,725
Retained earnings	75,343	71,507
Accumulated other comprehensive loss	(2,127)	(2,626)
Treasury stock, at cost; 4,855,667 Class A shares, 777,412 Class B shares in 2017 and 4,765,691 Class A shares, 768,944 Class B shares in 2016	(35,036)	(32,830)
Total shareholders’ equity	87,830	82,806
Total liabilities and shareholders’ equity	124,576	120,624
Common Class A [Member]
Shareholders’ equity:
Common stock, value	26	26
Common Class B [Member]
Shareholders’ equity:
Common stock, value	$ 4	$ 4