Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 8,567	$ 7,888
Accounts receivable, net	10,992	9,244
Prepaid expenses	282	287
Refundable income taxes	9	9
Other current assets	983	758
Total current assets	20,833	18,186
Property and equipment, less accumulated depreciation and amortization of $13,025 in 2013 and $12,524 in 2012	24,885	25,177
Leased property under capital leases, less accumulated depreciation and amortization of $3,147 in 2013 and $2,905 in 2012	6,832	6,680
Noncurrent deferred tax assets	8	8
Other assets, net	106	104
Total assets	52,664	50,155
Current Liabilities:
Current portion of obligations under capital leases	55	2
Accounts payable	7,357	6,677
Accrued payroll and other compensation	701	486
Accrued income taxes	14	2
Other accrued taxes	292	303
Deferred revenues	3,079	2,180
Other liabilities and accrued expenses	510	424
Total current liabilities	12,008	10,074
Obligations under capital leases	424	224
Shareholders’ Equity:
Paid-in capital	58,706	58,646
Accumulated deficit	(18,512)	(18,827)
Total shareholders’ equity	40,232	39,857
Total liabilities and shareholders’ equity	52,664	50,155
Common Class A [Member]
Shareholders’ Equity:
Common Stock	32	32
Common Class B [Member]
Shareholders’ Equity:
Common Stock	$ 6	$ 6