Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 7,624	$ 7,888
Accounts receivable, net	11,423	9,244
Prepaid expenses	357	287
Refundable income taxes	9	9
Other current assets	973	758
Total current assets	20,386	18,186
Property and equipment, less accumulated depreciation and amortization of $12,810 in 2013 and $12,524 in 2012	24,931	25,177
Leased property under capital leases, less accumulated depreciation and amortization of $3,023 in 2013 and $2,905 in 2012	6,871	6,680
Noncurrent deferred tax asset	8	8
Other assets, net	107	104
Total assets	52,303	50,155
Current Liabilities:
Current portion of obligations under capital leases	55	2
Accounts payable	8,302	6,677
Accrued payroll and other compensation	606	486
Accrued income taxes	21	2
Other accrued taxes	218	303
Deferred revenues	2,459	2,180
Other liabilities and accrued expenses	459	424
Total current liabilities	12,120	10,074
Obligations under capital leases	437	224
Shareholders’ Equity:
Paid-in capital	58,679	58,646
Accumulated deficit	(18,971)	(18,827)
Total shareholders’ equity	39,746	39,857
Total liabilities and shareholders’ equity	52,303	50,155
Common Class A [Member]
Shareholders’ Equity:
Common Stock	32	32
Common Class B [Member]
Shareholders’ Equity:
Common Stock	$ 6	$ 6