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Note 7 - Long-term Leases (Tables) | 3 Months Ended
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Mar. 31, 2025
Notes Tables |
Lessee, Lease, Liability, Maturity [Table Text Block] |
|  | Operating Leases |
2026 |  | $ | 35,718 |
2027 |  |  | 27,047 |
2028 |  |  | 2,193 |
2029 |  |  | 1,748 |
2030 |  |  | 1,539 |
Thereafter |  |  | 11,416 |
Total minimum lease payments |  |  | 79,661 |
Less: amounts representing interest |  |  | (10,740 | )
Present value of future minimum lease payments |  |  | 68,921 |
Less: current portion |  |  | (32,109 | )
Noncurrent lease liabilities |  | $ | 36,812 |

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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating and finance lease liability. + References No definition available. + Details
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Namespace Prefix: | nhc_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration