Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents		$ 11,911	$ 29,408
Restricted cash		3,222	4,154
Accounts receivable (less allowance of $266 at December 31, 2021 and $241 at December 31, 2020)		41,051	36,023
Unbilled accounts receivable		8,134	5,510
Contract assets		622	613
Prepaid expenses		1,948	2,256
Prepaid income tax and income tax receivable		7,456	7,388
Other current assets		1,031	886
Total current assets		75,375	86,238
Property, plant and equipment
Buildings and improvements		6,430	8,882
Equipment and furniture		21,189	33,650
Software		29,949	32,693
Software development and equipment installations in progress		2,691	315
Gross property, plant and equipment		60,259	75,540
Less accumulated depreciation		(52,512)	(69,662)
Net property, plant and equipment	[1]	7,747	5,878
Right-of-use assets		22,142	24,750
Other assets		2,597	2,632
Total assets		107,861	119,498
Current liabilities
Accounts payable and accrued expenses		16,132	16,294
Accrued payroll and related expenses		7,028	5,248
Short-term debt		0	4,926
Deferred revenue and customer advances		3,942	4,661
Customer postage and program deposits		6,496	6,497
Other current liabilities		2,291	2,903
Short-term lease liabilities		6,553	6,663
Total current liabilities		42,442	47,192
Long-term debt, net of current portion		5,000	22,174
Long-term lease liabilities		19,215	21,295
Other long-term liabilities		3,697	4,747
Total liabilities		122,853	162,898
Preferred stock, $1 par value, 1,000,000 shares authorized; 9,926 shares of Series A Convertible Preferred Stock, issued and outstanding		9,723	9,723
Stockholders’ deficit
Common stock, $1 par value, 25,000,000 shares authorized,12,121,484 shares issued, 6,976,144 and 6,599,309 shares outstanding at December 31, 2021 and December 31, 2020, respectively		12,121	12,121
Additional paid-in capital		290,711	383,043
Retained earnings		811,094	796,123
Less treasury stock, 5,145,340 shares at cost at December 31, 2021 and 5,522,175 shares at cost at December 31, 2020		(1,085,313)	(1,178,799)
Accumulated other comprehensive loss		(53,328)	(65,611)
Total stockholders’ deficit		(24,715)	(53,123)
Total liabilities, preferred stock and stockholders’ deficit		107,861	119,498
Qualified Plan [Member]
Current liabilities
Pension liabilities		27,359	40,512
Nonqualified Plan [Member]
Current liabilities
Pension liabilities		$ 25,140	$ 26,978

[1] Property, plant and equipment are based on physical location.