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Share Repurchase Program	3 Months Ended
Share Repurchase Program	Mar. 31, 2026
Equity [Abstract]
Share Repurchase Program	Share Repurchase Program On May 2, 2023, the Board of Directors of Harte Hanks approved a share repurchase program to maximize shareholder value with authorization to repurchase $6.5 million of the Company’s Common Stock. As of December 31, 2025, the share repurchase program authorization availability was $4.1 million. In the three months ended March 31, 2026 and 2025, we didn't repurchase any shares of common stock.