Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities:
Net income	$ 11,600,000	$ 24,783,000	$ 30,971,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	7,624,000	6,022,000	5,899,000
Deferred income taxes	2,453,000	(664,000)	(1,121,000)
Reserve for uncertain tax positions	174,000	258,000	404,000
Loss on disposal of property and equipment	61,000	17,000	0
Non-cash share-based compensation expense	3,312,000	284,000	935,000
Change in fair value of contingent consideration	141,000	83,000	0
Loss on extinguishment of debt	67,000	0	0
Amortization of debt issuance costs	102,000	28,000	39,000
Change in assets and liabilities:
Trade accounts receivable	(53,000)	1,757,000	2,084,000
Prepaid expenses and other current and noncurrent assets	24,000	1,749,000	(1,767,000)
Operating lease assets and liabilities, net	(41,000)	(23,000)	(127,000)
Deferred contract costs, net	(936,000)	(109,000)	988,000
Accounts payable	170,000	(108,000)	184,000
Accrued expenses, wages and bonuses	1,670,000	174,000	(807,000)
Income taxes receivable and payable	(191,000)	155,000	795,000
Deferred revenue	273,000	219,000	(364,000)
Net cash provided by operating activities	26,450,000	34,625,000	38,113,000
Cash flows from investing activities:
Capital expenditures	(10,706,000)	(15,448,000)	(15,779,000)
Acquisitions, net of cash acquired	0	(4,833,000)	0
Proceeds from the sale of property and equipment	0	0	1,000
Net cash used in investing activities	(10,706,000)	(20,281,000)	(15,778,000)
Cash flows from financing activities:
Borrowings on notes payable	(31,424,000)	(5,986,000)	(4,528,000)
Payment of debt issuance costs	(134,000)	(42,000)	(8,000)
Payments on notes payable	47,681,000	32,000,000	19,000,000
Borrowings on revolving loan	37,000,000	49,500,000	15,000,000
Payments on revolving loan	(37,003,000)	(49,500,000)	(15,000,000)
Payments on finance lease obligations	(9,000)	(21,000)	(290,000)
Proceeds from the exercise of stock options	132,000	0	584,000
Payment of payroll tax withholdings on share-based awards exercised	(407,000)	(317,000)	0
Payment of acquisition contingent consideration	(516,000)	0	0
Repurchase of shares for treasury	(20,180,000)	(30,945,000)	(19,099,000)
Payment of dividends on common stock	(10,978,000)	(11,453,000)	(36,366,000)
Net cash used in financing activities	(15,838,000)	(16,764,000)	(40,707,000)
Effect of exchange rate changes on cash
Effect of exchange rate changes on cash	0	0	(1,000)
Change in cash and cash equivalents	(94,000)	(2,420,000)	(18,373,000)
Cash and cash equivalents at beginning of period	4,233,000	6,653,000	25,026,000
Cash and cash equivalents at end of period	4,139,000	4,233,000	6,653,000
Supplemental disclosure of cash paid for:
Interest expense, net of capitalized amounts	4,485,000	2,440,000	803,000
Income taxes		8,225,000	8,932,000
Income taxes (Federal)	2,400,000
Income taxes (State and local)	1,406,000
Supplemental disclosure of non-cash investing and financing activities:
Purchase of property and equipment in accounts payable and accrued expenses	347,000	1,552,000	2,066,000
Stock tendered to the Company for cashless exercise of stock options in connection with equity incentive plans	188,000	1,752,000	1,241,000
Repurchase of shares for treasury in accounts payable and accrued expenses	228,000	311,000	152,000
New debt issued to existing lender	34,396,000	0	0
Debt extinguished using proceeds from new debt	62,076,000	0	0
Noncash borrowings on long-term debt for accrued interest and debt issuance costs	351,000	0	0
Contingent consideration recorded in connection with acquisition	$ 0	$ 776,000	$ 0